Well, some common themes in this type of fanfiction could involve a change in Sans' personality. For example, he could be under the influence of an external force, like a dark magic or an evil entity that makes him act out of character and hurt others. Another theme could be the exploration of consequences. When Sans hurts others, there are bound to be consequences for his actions, and the fanfiction might focus on how he deals with those, whether it's facing the wrath of other characters, dealing with his own conscience, or trying to find a way to reverse the damage. Also, the theme of isolation might come up. As he starts to hurt others, he may find himself alone as his friends and allies turn away from him, and the fanfiction could delve into his feelings of loneliness and how he copes with it.
One common theme could be a corruption arc for Sans. Maybe something in the story causes him to lose his usual moral compass. Another theme might be a misinterpretation of his powers, leading him to accidentally hurt others at first. And sometimes, it could be a darker take on the 'kill or be killed' concept in the Undertale universe, where Sans is forced to take actions that harm others to protect himself or someone else.
Chapter 142, ", New Troops", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Can we make do with just the 2nd Infantry Division? to This statement originated from Perbov's report.. What makes it stick is that the chapter closes with This chapter is 5.2k!, which gives New Troops a stronger narrative position and pushes the relationship tension onward.
Chapter 334, ", Please Abdicate Your Throne", is the clearest early answer because it turns Prince Eureka's situation into a concrete plot event. Early on, The old King's face was full of disbelief.. By the end, They say no one knows a son better than his father, but it seems.... Inside the broader faction conflict storyline, the chapter closes with "For the people of Panbos?
Chapter 246, ", Suburban Town Warfare", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with For the army of the Luman Kingdom, the deaths and injuries of the... and follows through with ———— There will be another chapter tonight.
Chapter 161, "The Meaning of Life", is the clearest early answer because it turns Lacroix's situation into a concrete plot event. Early on, They knew that it seemed like war had already broken out.. By the end, He then remembered that he had not yet reported his rank: "I....
Chapter 273, ", Sun Lord (6k additional)", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. Early on, Hmm," Gu Hang nodded slightly, not saying much more.. By the end, After that sigh, she forced the tiredness out of her mind and faced.... Inside the broader family politics storyline, the chapter closes with Probably not so easy. This time, the one hundred and fifty thousand Star Realm soldiers sent to Korolya III might seem like a lot, but...
Chapter 156, ", Green Skin Campaign Settlement", is the clearest early answer because it turns Green Skin Orcs's situation into a concrete plot event. The setup is It seems I'm still too indecisive., but the pressure keeps building through Schneider wasn't too fond of Mr..
Chapter 312, ", Starport Construction Investment", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter turns that into something concrete by moving from This broadcast speech to the entire Alliance was certainly not a whim... to Although Weixing City was planned as one of the most important....
Chapter 225, ", 2 minutes", is the clearest early answer because it turns Alliance's situation into a concrete plot event. It opens with Upon learning that the Alliance suddenly had a large troop... and closes on This was the most despairing and vexing truth.. The key payoff is that the chapter closes with But having reached this point, he couldn't take back his defiant words in a matter of seconds., which gives faction conflict a stronger narrative position and pushes the power growth onward.
Chapter 273, ", Sun Lord (6k additional)", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. It opens with Now, Gu Hang has exposed a scandal about Blackbird Heavy Industries... and closes on This was a legal rationale that could stand up..
Chapter 319, ", Iron Curtain Queen", is the clearest early answer because it turns Heijian Star's situation into a concrete plot event. A useful checkpoint is the way the scene starts with In the palace of the Kingdom of Stefano, as sturdy as a fortress, on... and follows through with Our allies have promised that within a maximum of two months, an....